Standard Lemma guide

osmosis

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • ŏz-mōˈ -sĭs
  • ŏs-
  • Received-Pronunciation: /ɒzˈməʊ̯sɪs/
  • Received-Pronunciation: /ɒsˈməʊ̯sɪs/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ɑzˈmoʊ̯sɪs/
  • General-American: /ɑsˈmoʊ̯sɪs/
  • rhymes with -əʊsɪs
  • rhymes with -oʊsɪs
  • CMU ARPABET: AO2 Z M OW1 S IH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Passive absorption or impartation of information, habits, etc.; the process of teaching or learning particular knowledge incidentally rather than consciously.

Definition source: English Wiktionary via Wiktextract

Usage: countable, figuratively, uncountable

Examples

  • Near-synonym: serendipity
  • I was reading about chickens, and I guess I learned about hawks through osmosis.

Meaning relationships

Synonyms: serendipity

Antonyms: none provided

3

noun

Meaning 3

(biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: diffusion

Narrower terms: reverse osmosis

History

Etymology

From endosmose and exosmose, both coined by French physician Henri Dutrochet in 1826; from (respectively) Ancient Greek ἔνδον (éndon, “within”) and Ancient Greek ἔξω (éxō, “outer, external”), plus Ancient Greek ὠσμός (ōsmós, “push, impulsion”), from ὠθέω (ōthéō).

Across languages

Translations

57 source translations are retained for this English entry.

  • Arabic: خَاصِّيَّة أُسْمُوزِيَّة (ḵāṣṣiyya ʔusmūziyya, ḵāṣṣiyya ʔusmōziyya) — movement of molecules across a membrane
  • Arabic: تَنَاضُح (tanāḍuḥ) — movement of molecules across a membrane
  • Aragonese: osmosi — movement of molecules across a membrane
  • Asturian: ósmosis — movement of molecules across a membrane
  • Belarusian: о́смас (ósmas) — movement of molecules across a membrane
  • Bengali: অভিস্রবণ (obhisrobon) — movement of molecules across a membrane
  • Bulgarian: осмоза (osmoza) — movement of molecules across a membrane
  • Catalan: osmosi — movement of molecules across a membrane
  • Chinese Mandarin: 渗透 (shèntòu) — movement of molecules across a membrane
  • Czech: osmóza — movement of molecules across a membrane
  • Danish: osmose — movement of molecules across a membrane
  • Dutch: osmose — movement of molecules across a membrane
  • Esperanto: osmozo — movement of molecules across a membrane
  • Finnish: osmoosi — movement of molecules across a membrane
  • French: osmose — movement of molecules across a membrane
  • Galician: osmose — movement of molecules across a membrane
  • German: Osmose — movement of molecules across a membrane
  • Greek: ώσμωση (ósmosi) — movement of molecules across a membrane
  • Gujarati: અભિસરણ (abhisaraṇ) — movement of molecules across a membrane
  • Hindi: परासरण (parāsaraṇ) — movement of molecules across a membrane
  • Hungarian: ozmózis — movement of molecules across a membrane
  • Icelandic: himnuflæði — movement of molecules across a membrane
  • Indonesian: osmosis — movement of molecules across a membrane
  • Irish: osmóis — movement of molecules across a membrane
  • Italian: osmosi — movement of molecules across a membrane
  • Japanese: 浸透 (shintō) — movement of molecules across a membrane
  • Khmer: អូស្មូស (ʼousmouh) — movement of molecules across a membrane
  • Korean: 삼투 (samtu) — movement of molecules across a membrane
  • Malayalam: വൃതിവ്യാപനം (vr̥tivyāpanaṁ) — movement of molecules across a membrane
  • Māori: rerewai — movement of molecules across a membrane
  • Persian: اسمز (osmoz) — movement of molecules across a membrane
  • Polish: osmoza — movement of molecules across a membrane
  • Portuguese: osmose — movement of molecules across a membrane
  • Russian: о́смос (ósmos) — movement of molecules across a membrane
  • Shona: musenerera — movement of molecules across a membrane
  • Spanish: ósmosis — movement of molecules across a membrane
  • Swedish: osmos — movement of molecules across a membrane
  • Tagalog: pananagos — movement of molecules across a membrane
  • Tamil: சவ்வூடு பரவல் (cavvūṭu paraval) — movement of molecules across a membrane
  • Tamil: பிரசாரணம் (piracāraṇam) — movement of molecules across a membrane
  • Telugu: ద్రవాభిసరణం (dravābhisaraṇaṁ) — movement of molecules across a membrane
  • Thai: การออสโมสิส — movement of molecules across a membrane
  • Ukrainian: о́смос (ósmos) — movement of molecules across a membrane
  • Vietnamese: sự thẩm thấu — movement of molecules across a membrane
  • Chinese Mandarin: 耳濡目染 (ěrrúmùrǎn) — picking up knowledge accidentally
  • Finnish: through osmosis — picking up knowledge accidentally
  • Finnish: samalla — picking up knowledge accidentally
  • German: but see Nachempfindung — picking up knowledge accidentally
  • German: Nachvollziehung — picking up knowledge accidentally
  • German: Nachvollzug — picking up knowledge accidentally
  • German: Gefühlsansteckung — picking up knowledge accidentally
  • German: Hineindenkung — picking up knowledge accidentally
  • German: Gedankenansteckung — picking up knowledge accidentally
  • German: Gedankenübernahme — picking up knowledge accidentally
  • German: Ansichtenübernahme — picking up knowledge accidentally
  • Polish: osmoza — picking up knowledge accidentally
  • Portuguese: osmose — picking up knowledge accidentally